package com.ailink.basic.polymorphic;

/**
 * Created by Administrator on 2018/3/2
 */
public class Counter {
    public static volatile int count = 0;

    public static void inc() {

        //这里延迟1毫秒，使得结果明显
        try {
            Thread.sleep(1);
        } catch (InterruptedException e) {
        }

        count++;
    }

    private final static Object lockObject = new Object();

    public static void main(String[] args) {

        try {
            lockObject.wait();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        lockObject.notifyAll();

        //同时启动1000个线程，去进行i++计算，看看实际结果

        for (int i = 0; i < 1000; i++) {
            new Thread(new Runnable() {
                @Override
                public void run() {
                    Counter.inc();
                }
            }).start();
        }

        while (true) {
            //这里每次运行的值都有可能不同,可能为1000
            System.out.println("运行结果:Counter.count=" + Counter.count);
            try {
                Thread.sleep(1000);
            } catch (Exception e) {

            }
        }
    }
}
